When comparing prices, you must look beyond the surface and evaluate Mass per Unit Area (GSM), which typically ranges from 100g/m² to 1000g/m². The price is heavily influenced by the raw material type, specifically Virgin Polypropylene (PP) versus Polyester (PET); PP generally offers superior acid and alkali resistance but comes at a higher cost. Additionally, verify the Tensile Strength (kN/m) and CBR Puncture Resistance, as these mechanical properties determine the fabric's performance in soil separation and reinforcement.